1. Solvent treatment inducing ultralong cycle stability poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonic acid) fibers as binding‐free electrodes for supercapacitors.
- Author
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Liu, Guoqiang, Jiang, Fengxing, Liu, Jing, Liu, Congcong, Xu, Jingkun, Jiang, Qinglin, Zheng, Nan, Nie, Guangming, and Liu, Peipei
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CONDUCTING polymer composites ,FIBERS ,DIMETHYL sulfoxide ,ENERGY conversion ,ENERGY storage ,POLYMER electrodes ,SUPERCAPACITOR electrodes ,POLYTHIOPHENES - Abstract
Summary: As one kind of conducting polymer composite, poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonic acid) (PEDOT:PSS) has been widely used as an electrode for energy storage and conversion devices because of its optical transmittance, flexibility, and high electrical conductivity etc. Here, we prepared binding‐free PEDOT:PSS fibers (PFs) electrodes with high capacitive performance for supercapacitors via a facile method followed by various solvent treatments. Dimethyl sulfoxide (DMSO)‐treated electrodes displayed a better specific capacitance (Cs) of 202 F/g at 0.5 A/g with higher elongation at break, flexibility, and conductivity of 140.7 S/cm, compared to those of pristine PEDOT:PSS materials. More importantly, the DMSO‐treated fibers possessed improved stability, which retained 105% of the initial Cs after 22 000 long cycles at 10 A/g. It is believed that the fabricated PFs will be promising organic electrodes for portable supercapacitors and other flexible electronic devices in the near future. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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